scholarly journals STUDY OF THE INFLUENCE OF THE INTENSIVE USAGE OF INTRAVAGINAL SPONGES ON THE WEIGHT OF LAMBS OF AWASSI BREED IN SYRIA

2011 ◽  
Vol 57 (128) ◽  
pp. 1-16
Keyword(s):  
Awassi Breed

A note on the characteristics of oestrus and ovulation in Awassi ewes

1990 ◽  
Vol 50 (1) ◽  
pp. 198-201 ◽  
Author(s):  
R. Kassem ◽  
J. B. Owen ◽  
I. Fadel
Keyword(s):  
Cycle Length ◽  
Oestrous Cycle ◽  
Ovulation Rate ◽  
Mean Values ◽  
Ewe Lambs ◽  
Awassi Breed

The length of the oestrous cycle observed in 20 ewe lambs and 424 ewes of the Awassi breed gave mean values of 16·4 (s.d. 1·31) days for ewe lambs and 17·4 (s.d. 1·84) days for ewes. Plane of nutrition did not affect cycle length in ewe lambs and age of ewe (from 2 to 5 years) did not affect oestrous cycle length in ewes (P > 0·05). Of 40 ewes treated with progesterone intravaginal sponges 33 (83%) showed oestrus and 28 (70%) ovulated at the first (synchronized) and 31 (78%) and 30 (75%) at the repeat oestrus. Mean duration of oestrus was 40·0 (s.d. 16·37) h (range 8 to 72) for the first and 34·7 (s.d. 11·19) h (range 16 to 54) for the repeat oestrus. Ovulation rate, measured in the same ewes, gave mean values of 1·18 (s.d. 0·460) for the first and 1·223 (s.d. 0·440) for the repeat oestrus.

scholarly journals STUDY OF GENETIC DIVERSITY USING MICROSATELLITE MARKERS IN IRAQI SHEEP BREEDS

2020 ◽  
Vol 51 (5) ◽  
pp. 1367-1374
Author(s):  
Hadi & et al.
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Allele Frequency ◽  
Genetic Relationships ◽  
Allelic Frequency ◽  
Dominant Allele ◽  
Sheep Breeds ◽  
Biotechnology Research ◽  
Pcr Technology ◽  
Awassi Breed

Genotypes and allele frequency values ​​were studied to determine the genetic diversity of three microsatellite markers (BM1329, BM134 and CSSM66) in two local Iraqi sheep breeds (50 Awasi ewes (AW) and 50 Naimi ewes (NA)) and breed in one Agricultural Stations in middle of Al-Furut Iraq (Karbala Governorate). The Genetic analyses for the study were carried out at the Biotechnology Research Center /  Al-Nahrain University using PCR technology to obtain alleles for the studied microsatellites. The results of this study indicate that there is a multiplicity of genotypes and alleles resulting from these markers among the members of the single breed and between the studied breeds. It was revealed that the allele frequency values showed the presence of alleles dominant on the rest of alleles produce in this sample studied, the BM1329 microsatellite of the Awassi breed produced the dominant allele frequency in 195(0.25) and 320 (0.25), While in the Naimi breed were the values ​​of the dominant allele frequency of the195(0.22), 220(0.21) and 230(0.24), and the dominant allelic frequency of (BM134) marker in the Awassi breed was 118 and 135 and repeated (0.21 and 0.26, respectively). For CSSM66 microsatellite, the dominant allelic results and their allelic frequency values ​​were (195 (0.20), 205 (0.23) and 220 (0.25)) for Awasi breed, whereas it was 180 (0.24), 195 (0.28) and 220 (0.22) for Nuaimi breed. These results enable us to use these markers as a means of determining the diversity and genetic relationships between individuals of a single breed as well as between breeds.

Birthcoat fibre type arrays of lambs and some adult fleece traits

1979 ◽  
Vol 93 (1) ◽  
pp. 195-201 ◽  
Author(s):  
R. A. Guirgis
Keyword(s):  
Normal Distribution ◽  
Fibre Type ◽  
Fibre Diameter ◽  
Fibre Length ◽  
Average Diameter ◽  
Bimodal Distribution ◽  
Fibre Types ◽  
The Mean ◽  
Awassi Lambs ◽  
Awassi Breed

SUMMARYIn a study of two coarse-wool breeds (Awassi and Hamdani) the birthcoat and adult fleece were sampled from six body positions. Mean fibre diameter, mean fibre length, mean staple length and the percentages of fibre types were studied in relation to the birthcoat fibre type arrays.The birthcoat of the two coarse wool breeds showed only plateau and saddle fibre type arrays. In Awassi lambs, plateau arrays were all P3 type whereas in Hamdani 28·6% of the plateau arrays were Po and the rest were P3 indicating a stronger base in the latter. S/P ratios, calculated from fibre types, were 2·22 and 2·27, at birth, and 3·56 and 2·93 at 4–8 weeks of age, in Awassi and Hamdani respectively. Awassi birthcoats showed more precipice within the CT group than those of Hamdani and plateau arrays were more endowed with the precipice than were saddle arrays.A composite sample from the back and mid-side, in Awassi, and from the back and britch, in Hamdani, was found to be most representative of the birthcoat fibre types.In the adult fleece of the Awassi breed, the mean fibre length following plateau arrays exceeded those following saddle arrays.In Hamdani, the saddle arrays developed into coarser fibres in average diameter than those of plateau arrays whereas in Awassi no difference occurred. Awassi plateau arrays were followed by higher within-staple variability in distribution of fibre length than were saddle arrays, whereas in the distribution of fibre diameter there was no difference. In Hamdani, however, saddle arrays were followed by slightly higher within-stable variability in both length and diameter than were plateau arrays.Birthcoat samples that had a transition in the CT group or had saddle array developed into adult fleeces with greater frequency of normal distribution in both fibre length and diameter, within staple. Adult fleeces that showed frequent bimodal distribution of both diameter and length, within staple, were those with birthcoats that had a precipice in length, or in coarseness and length, within their CT group or those with birthcoats that had plateau arrays.

scholarly journals Comparison of models for describing the lactation curve of Awassi, Morkaraman and Tushin sheep

2010 ◽  
Vol 53 (4) ◽  
pp. 447-456
Author(s):  
O. C. Bilgin ◽  
N. Esenbuga ◽  
M. E. Davis
Keyword(s):  
Prediction Error ◽  
Empirical Models ◽  
Coefficient Of Determination ◽  
Peak Time ◽  
Mean Square ◽  
Lactation Curve ◽  
Breed Differences ◽  
Watson Statistic ◽  
Wood Model ◽  
Awassi Breed

Abstract. The aim of this study was to identify a suitable mathematical model for describing the lactation curve of Awassi, Morkaraman and Tushin sheep breeds and to determine breed differences. Data on milk yield of 182 Awassi, 47 Morkaraman and 74 Tushin ewes were used. Eight empirical models from the literature were used to fit the standard lactation curves. Among them the Wood model (WD) appeared the most appropriate according to mean square prediction error (MSPE), coefficient of determination (R2), Durbin-Watson statistic (DW), and its applicability to the data for all three breeds. There were statistically significant (P<0.05) differences among Awassi, Morkaraman and Tushin breeds in accordance with a, b and c parameters and peak yield. The Awassi breed had the highest peak yield and the Morkaraman and Tushin breeds had statistically similar lower peak yields. There were no significant differences among the parameters of the WD model except for peak yield and peak time in accordance with parities. Breed and parity interaction was significant (P<0.05) only for peak yield.

scholarly journals Relationship of some metabolic Hormones with Increased Live Body Weight of Male and Female of Karakul and Awassi Lambs

2021 ◽  
Vol 34 (2) ◽  
pp. 107-117
Author(s):  
Thamer R. S. Aljubouri ◽  
Firas M. Al-Khafaji ◽  
& Mohammed Baqur S. Al-Shuhaib
Keyword(s):  
Growth Traits ◽  
Blood Samples ◽  
Metabolic Hormones ◽  
Live Body Weight ◽  
Body Weights ◽  
Higher Weights ◽  
Relationship Of ◽  
Selection Of ◽  
Awassi Lambs ◽  
Awassi Breed

This study was conducted in the animal field of the Al-Kafeel Company from November 2019 till May 2020 to investigate the possible association between growth hormone (GH) and thyroxine (T4) with the growth traits in Awassi and Karakul sheep. The total number of animals which used in the study was 60 lambs, 28 (13 males and 15 females) from Karakul and 32 (18 males and 14 females) from Awassi. Blood samples were collected at birth, weaning, and six months of age, and both GH and T4 concentrations were measured. Results showed higher values of T4 for Karakul as compared with Awassi at birth and weaning. Karakul breed was also exhibited significantly higher values of GH over Awassi breed only at weaning, while, no significant differences were observed at birth and six months of age. Karakul lambs showed higher weights as compared with Awassi lambs at all studied periods. A highly significant (p < 0.01) positive correlation was observed between T4 concentration and the weight of lambs at most studied periods. Whereas, GH did not exhibit any correlation with growth traits measured in both breeds. The elevated T4 might be one of the reasons for superiority of Karakul over Awassi breed in live body weights. This high correlation between T4 and growth traits could be used in the early selection of lambs to improve the weights of sheep at marketing.

scholarly journals Effect of fat tail docking on meat quality of Awassi sheep in comparison with Lacaune sheep

2019 ◽  
pp. 6793-6804
Keyword(s):  
Meat Quality ◽  
Gluteus Medius ◽  
Biceps Femoris ◽  
Drip Loss ◽  
Fat Tail ◽  
Awassi Sheep ◽  
Tail Docking ◽  
Three Samples ◽  
One Year ◽  
Awassi Breed

1 ABSTRACT This experiment was conducted to study the effect of fat tail docking on Awassi lamb sheep’s meat in comparison with thin-tail Lacaune sheep’s meat (imported breed in Lebanon). Twenty seven ram lambs were divided into three groups, intact fat-tail Awassi (IA), docked fat-tail Awassi (DA), and imported thin-tail Lacaune (IL). Docking was performed at one week of age, by applying tight rubber rings on the tail. Animals having the same body weight were slaughtered at one year of age. Three samples of muscles were excised from each carcass; Biceps Femoris (Bf), Longissimus Dorsii (Ld) and Gluteus Medius (Gm). Samples were wrapped in an oxygen permeable film and stored at 4°C and - 30°C for the assessment of pH, and meat quality traits. The ultimate pH was significantly higher (P<0.01) in Lacaune breed as compared to both docked and intact Awassi breed. DA animals had significantly higher (P<0.01) fat content in Ld muscle than IA and IL lambs. Both Awassi groups presented higher L* values than Lacaune animals (P< 0.05). In addition for Awassi breed, L* values of Bf and Gm muscles were significantly greater (P< 0.05) than that of Ld muscle. b* values were significantly greater (P< 0.05) in Gm of all animals under study. Lacaune group had lower drip loss values than Awassi groups (P< 0.05 in Bf and Gm muscles and P< 0.01 in Ld muscle). However for Awassi breed, the drip loss in Ld muscle of DA animals was significantly lower (P<0.01) than IA ones. Furthermore, thawing and cooking losses were neither affected by breed nor by docking. Regarding the PND values, the Ld muscle of DA group presented higher values (P< 0.05) than Bf and Gm muscles of both intact groups. In addition, cooked meat PND values were significantly higher (P< 0.05) in Ld muscle of DA when compared to intact groups. Due to the scarcity of information in this area of research, further investigations are needed.

Reproductive performance and milk production of the improved Awassi breed as compared with its crosses with the Booroola Merino

1995 ◽  
Vol 60 (1) ◽  
pp. 109-115 ◽  
Author(s):  
E. Gootwine ◽  
A. Bor ◽  
R. Braw-Tal ◽  
A. Zenou
Keyword(s):  
Milk Production ◽  
Survival Rates ◽  
Ovulation Rate ◽  
Corpora Lutea ◽  
Embryo Survival ◽  
Average Birth Weight ◽  
Significant Difference ◽  
Per Se ◽  
Lamb Survival ◽  
Awassi Breed

AbstractOvulation rate, embryo survival, lamb production, lamb survival and milk production of Awassi and BooroolaAwassi crossbred ewes, kept indoors, were compared. Awassi were non-carriers while Booroola × Awassi (F1) and about half of 3/4 Awassi-1/4 Booroola (BQ) ewes were heterozygous at the FecB gene. Mean ovulation rate increased by 1·5 to 1·6 corpora lutea per ewe ovulating and prolificacy by 0·7 lambs born per ewe lambing in Fj and BC1 (B+) ewes as compared with Awassi. Embryo survival rates in BC1 ewes with two, three and four ovulations were 0·83, 0·68 and 0·71, respectively. Lamb survival rates at 1 day of age were 0·93, 0·90 and 0·77 and average birth weight was 4·9, 4·0 and 3·0 kg for lambs born as singles, twins and triplets, respectively. Average milk production of the Awassi was 506 I per ewe per lactation. F1 and BC1 ewes produced respectively, proportionately 0·48 and 0·63 of the Awassi milk production and there was no significant difference in milk production between BC1,(B+) and BC1(++) ewes. The relatively low milk production of the Booroola Awassi crosses suggests that heterosis and recombination effects on milk production were negative. It is concluded that incorporation of the B allele per se can increase lamb production in the Awassi without affecting its milk production.

Co-inherited novel SNPs of the LIPE gene associated with increased carcass dressing and decreased fat-tail weight in Awassi breed

2020 ◽  
Vol 52 (6) ◽  
pp. 3631-3638
Author(s):  
Tahreer M. Al-Thuwaini ◽  
Mohammed Baqur S. Al-Shuhaib ◽  
Frederic Lepretre ◽  
Zainab A. Mahdi
Keyword(s):  
Fat Tail ◽  
Awassi Breed

scholarly journals Using of Microsatellites to Study the Genetic Polymorphisms of SRYm18 Region in Iraqi Sheep

2021 ◽  
Vol 13 (2) ◽  
pp. 32-37
Author(s):  
Hawraa Al-Mohamadawi ◽  
Asaad Y. Ayied
Keyword(s):  
Y Chromosome ◽  
Genetic Polymorphisms ◽  
Gene Segment ◽  
College Of Agriculture ◽  
Awassi Sheep ◽  
Expected Heterozygosity ◽  
The World ◽  
Rare Alleles ◽  
Equilibrium Test ◽  
Awassi Breed

The origin of animals is usually determined by their paternal genotypes of the genes on the Y chromosome. In addition to the genes and their polymorphisms in the genome of mitochondria that are inherited through dams. In view of the lack of studies focusing on the genes of the Y chromosome in the world and their absence in Iraq. The aim of the present study was to identify the multiple genetic polymorphisms of the SRYM18 gene in the Arabi and Awassi sheep raised in Iraq. The study was conducted in the Genetic Engineering Laboratories - College of Agriculture, University of Basra, as well as in the Basra Genome Laboratory. The amplification of the SRYM18 gene showed genetic polymorphisms and gave a gene segment of (103-880) bp. The number of alleles of the SRYm18 gene was 13 alleles in the Arabi and 16 alleles in the Awassi breeds. The equilibrium test showed that the two breeds were under equilibrium. The two breeds were identical with nine alleles, while the number of special alleles for the Arabi breed was two, while the Awassi breed was distinguished by five. The number of rare alleles reached 20, of which seven were of the Arabi breed, and 13 of them were of the Awassi breed. Mean expected heterozygosity was 0.6386 with nonsignificant Fis for Arabi breed (0.1541) but significant for Awassi breed (0.2213). Mean neutrality was close to lower bound (0.1721) and (0.1270) for Arabi and Awassi breeds respectively

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